./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product36.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 49fa497f38e3a46185ee804b3f30fdc119cb200c ...................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product36.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 49fa497f38e3a46185ee804b3f30fdc119cb200c ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 14:53:55,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:53:55,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:53:55,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:53:55,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:53:55,950 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:53:55,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:53:55,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:53:55,954 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:53:55,955 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:53:55,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:53:55,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:53:55,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:53:55,957 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:53:55,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:53:55,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:53:55,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:53:55,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:53:55,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:53:55,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:53:55,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:53:55,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:53:55,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:53:55,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:53:55,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:53:55,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:53:55,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:53:55,968 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:53:55,969 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:53:55,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:53:55,969 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:53:55,970 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:53:55,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:53:55,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:53:55,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:53:55,971 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:53:55,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:53:55,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:53:55,972 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:53:55,973 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:53:55,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:53:55,974 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 14:53:55,984 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:53:55,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:53:55,985 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 14:53:55,986 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 14:53:55,986 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 14:53:55,986 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 14:53:55,986 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 14:53:55,986 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 14:53:55,986 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 14:53:55,986 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 14:53:55,987 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 14:53:55,987 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 14:53:55,987 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 14:53:55,987 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 14:53:55,987 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 14:53:55,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:53:55,988 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:53:55,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:53:55,988 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:53:55,988 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:53:55,988 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:53:55,988 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:53:55,988 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:53:55,989 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 14:53:55,989 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:53:55,989 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:53:55,989 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:53:55,989 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:53:55,989 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:53:55,989 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:53:55,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:53:55,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:53:55,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:53:55,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:53:55,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:53:55,990 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 14:53:55,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 14:53:55,990 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:53:55,991 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:53:55,991 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 14:53:55,991 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49fa497f38e3a46185ee804b3f30fdc119cb200c [2019-12-07 14:53:56,097 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:53:56,107 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:53:56,110 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:53:56,111 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:53:56,112 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:53:56,112 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product36.cil.c [2019-12-07 14:53:56,154 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/data/1186c47dd/2fa3c4c196d64d0097b6becab49e4d3c/FLAG3e42ee369 [2019-12-07 14:53:56,647 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:53:56,648 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/sv-benchmarks/c/product-lines/minepump_spec2_product36.cil.c [2019-12-07 14:53:56,657 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/data/1186c47dd/2fa3c4c196d64d0097b6becab49e4d3c/FLAG3e42ee369 [2019-12-07 14:53:56,666 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/data/1186c47dd/2fa3c4c196d64d0097b6becab49e4d3c [2019-12-07 14:53:56,668 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:53:56,669 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:53:56,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:53:56,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:53:56,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:53:56,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:53:56" (1/1) ... [2019-12-07 14:53:56,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed7335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:56, skipping insertion in model container [2019-12-07 14:53:56,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:53:56" (1/1) ... [2019-12-07 14:53:56,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:53:56,705 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:53:56,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:53:56,918 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2019-12-07 14:53:56,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1189e81d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:56, skipping insertion in model container [2019-12-07 14:53:56,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:53:56,919 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-12-07 14:53:56,921 INFO L168 Benchmark]: Toolchain (without parser) took 251.09 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 948.9 MB in the beginning and 1.1 GB in the end (delta: -144.8 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 14:53:56,921 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:53:56,922 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -150.1 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2019-12-07 14:53:56,923 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 249.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 943.5 MB in the beginning and 1.1 GB in the end (delta: -150.1 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 169]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-12-07 14:53:58,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:53:58,119 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:53:58,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:53:58,128 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:53:58,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:53:58,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:53:58,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:53:58,133 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:53:58,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:53:58,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:53:58,136 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:53:58,136 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:53:58,137 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:53:58,138 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:53:58,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:53:58,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:53:58,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:53:58,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:53:58,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:53:58,146 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:53:58,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:53:58,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:53:58,149 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:53:58,151 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:53:58,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:53:58,152 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:53:58,152 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:53:58,153 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:53:58,154 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:53:58,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:53:58,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:53:58,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:53:58,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:53:58,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:53:58,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:53:58,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:53:58,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:53:58,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:53:58,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:53:58,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:53:58,159 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-12-07 14:53:58,172 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:53:58,173 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:53:58,173 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 14:53:58,173 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 14:53:58,174 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 14:53:58,174 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 14:53:58,174 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 14:53:58,174 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 14:53:58,174 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 14:53:58,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:53:58,175 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:53:58,175 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:53:58,175 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:53:58,175 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:53:58,176 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:53:58,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:53:58,176 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 14:53:58,176 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-12-07 14:53:58,176 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-12-07 14:53:58,176 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:53:58,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:53:58,177 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:53:58,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:53:58,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:53:58,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:53:58,177 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:53:58,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:53:58,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:53:58,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:53:58,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:53:58,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:53:58,178 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-12-07 14:53:58,178 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-12-07 14:53:58,178 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:53:58,178 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:53:58,178 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 14:53:58,179 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49fa497f38e3a46185ee804b3f30fdc119cb200c [2019-12-07 14:53:58,355 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:53:58,363 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:53:58,365 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:53:58,366 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:53:58,366 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:53:58,367 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec2_product36.cil.c [2019-12-07 14:53:58,405 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/data/11694e5f8/7435471feda2495683eee402fd5580e9/FLAG36c4cf2f0 [2019-12-07 14:53:58,783 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:53:58,783 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/sv-benchmarks/c/product-lines/minepump_spec2_product36.cil.c [2019-12-07 14:53:58,791 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/data/11694e5f8/7435471feda2495683eee402fd5580e9/FLAG36c4cf2f0 [2019-12-07 14:53:58,800 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/data/11694e5f8/7435471feda2495683eee402fd5580e9 [2019-12-07 14:53:58,801 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:53:58,802 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:53:58,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:53:58,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:53:58,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:53:58,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:53:58" (1/1) ... [2019-12-07 14:53:58,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b70e7d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:58, skipping insertion in model container [2019-12-07 14:53:58,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:53:58" (1/1) ... [2019-12-07 14:53:58,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:53:58,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:53:59,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:53:59,099 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2019-12-07 14:53:59,105 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:53:59,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:53:59,153 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:53:59,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:53:59,217 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:53:59,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:59 WrapperNode [2019-12-07 14:53:59,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:53:59,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:53:59,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:53:59,218 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:53:59,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:59" (1/1) ... [2019-12-07 14:53:59,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:59" (1/1) ... [2019-12-07 14:53:59,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:53:59,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:53:59,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:53:59,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:53:59,266 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:59" (1/1) ... [2019-12-07 14:53:59,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:59" (1/1) ... [2019-12-07 14:53:59,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:59" (1/1) ... [2019-12-07 14:53:59,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:59" (1/1) ... [2019-12-07 14:53:59,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:59" (1/1) ... [2019-12-07 14:53:59,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:59" (1/1) ... [2019-12-07 14:53:59,285 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:59" (1/1) ... [2019-12-07 14:53:59,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:53:59,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:53:59,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:53:59,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:53:59,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:53:59,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:53:59,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2019-12-07 14:53:59,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:53:59,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:53:59,780 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:53:59,780 INFO L287 CfgBuilder]: Removed 104 assume(true) statements. [2019-12-07 14:53:59,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:53:59 BoogieIcfgContainer [2019-12-07 14:53:59,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:53:59,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:53:59,782 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:53:59,784 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:53:59,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:53:58" (1/3) ... [2019-12-07 14:53:59,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492a0ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:53:59, skipping insertion in model container [2019-12-07 14:53:59,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:53:59" (2/3) ... [2019-12-07 14:53:59,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@492a0ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:53:59, skipping insertion in model container [2019-12-07 14:53:59,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:53:59" (3/3) ... [2019-12-07 14:53:59,786 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product36.cil.c [2019-12-07 14:53:59,793 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:53:59,798 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-12-07 14:53:59,806 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-07 14:53:59,823 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:53:59,823 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 14:53:59,823 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:53:59,824 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:53:59,824 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:53:59,824 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:53:59,824 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:53:59,824 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:53:59,835 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2019-12-07 14:53:59,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-07 14:53:59,840 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:53:59,840 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:53:59,841 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:53:59,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:53:59,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1480559057, now seen corresponding path program 1 times [2019-12-07 14:53:59,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:53:59,853 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1891974291] [2019-12-07 14:53:59,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-12-07 14:53:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:54:00,005 INFO L264 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 1 conjunts are in the unsatisfiable core [2019-12-07 14:54:00,009 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:54:00,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:54:00,020 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:54:00,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:54:00,025 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1891974291] [2019-12-07 14:54:00,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:54:00,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-12-07 14:54:00,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093195497] [2019-12-07 14:54:00,030 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 14:54:00,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:54:00,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 14:54:00,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 14:54:00,046 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 2 states. [2019-12-07 14:54:00,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:54:00,065 INFO L93 Difference]: Finished difference Result 161 states and 246 transitions. [2019-12-07 14:54:00,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 14:54:00,066 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2019-12-07 14:54:00,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:54:00,077 INFO L225 Difference]: With dead ends: 161 [2019-12-07 14:54:00,077 INFO L226 Difference]: Without dead ends: 80 [2019-12-07 14:54:00,080 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 14:54:00,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-12-07 14:54:00,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2019-12-07 14:54:00,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-12-07 14:54:00,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 115 transitions. [2019-12-07 14:54:00,113 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 115 transitions. Word has length 18 [2019-12-07 14:54:00,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:54:00,114 INFO L462 AbstractCegarLoop]: Abstraction has 80 states and 115 transitions. [2019-12-07 14:54:00,114 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 14:54:00,114 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2019-12-07 14:54:00,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-07 14:54:00,115 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:54:00,115 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:54:00,315 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-12-07 14:54:00,316 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:54:00,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:54:00,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1228794243, now seen corresponding path program 1 times [2019-12-07 14:54:00,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:54:00,320 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [789754115] [2019-12-07 14:54:00,320 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-12-07 14:54:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:54:00,507 INFO L264 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:54:00,509 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:54:00,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:54:00,526 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:54:00,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:54:00,536 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [789754115] [2019-12-07 14:54:00,536 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:54:00,536 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 14:54:00,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908454082] [2019-12-07 14:54:00,538 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:54:00,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:54:00,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:54:00,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:54:00,538 INFO L87 Difference]: Start difference. First operand 80 states and 115 transitions. Second operand 4 states. [2019-12-07 14:54:00,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:54:00,548 INFO L93 Difference]: Finished difference Result 80 states and 115 transitions. [2019-12-07 14:54:00,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:54:00,549 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-12-07 14:54:00,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:54:00,550 INFO L225 Difference]: With dead ends: 80 [2019-12-07 14:54:00,550 INFO L226 Difference]: Without dead ends: 38 [2019-12-07 14:54:00,551 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:54:00,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-12-07 14:54:00,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-12-07 14:54:00,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-12-07 14:54:00,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2019-12-07 14:54:00,555 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2019-12-07 14:54:00,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:54:00,555 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2019-12-07 14:54:00,556 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:54:00,556 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2019-12-07 14:54:00,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-12-07 14:54:00,556 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:54:00,557 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:54:00,757 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-12-07 14:54:00,757 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:54:00,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:54:00,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1219405376, now seen corresponding path program 1 times [2019-12-07 14:54:00,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:54:00,758 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218429169] [2019-12-07 14:54:00,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-12-07 14:54:00,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:54:00,862 INFO L264 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:54:00,863 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:54:00,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:54:00,871 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:54:00,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:54:00,878 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1218429169] [2019-12-07 14:54:00,878 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:54:00,878 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-12-07 14:54:00,879 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216891465] [2019-12-07 14:54:00,879 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:54:00,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:54:00,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:54:00,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:54:00,880 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand 4 states. [2019-12-07 14:54:00,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:54:00,931 INFO L93 Difference]: Finished difference Result 124 states and 184 transitions. [2019-12-07 14:54:00,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:54:00,932 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-12-07 14:54:00,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:54:00,933 INFO L225 Difference]: With dead ends: 124 [2019-12-07 14:54:00,933 INFO L226 Difference]: Without dead ends: 93 [2019-12-07 14:54:00,933 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:54:00,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2019-12-07 14:54:00,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 58. [2019-12-07 14:54:00,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-12-07 14:54:00,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 85 transitions. [2019-12-07 14:54:00,941 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 85 transitions. Word has length 24 [2019-12-07 14:54:00,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:54:00,942 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 85 transitions. [2019-12-07 14:54:00,942 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:54:00,942 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 85 transitions. [2019-12-07 14:54:00,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-07 14:54:00,943 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:54:00,943 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:54:01,143 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-12-07 14:54:01,144 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:54:01,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:54:01,144 INFO L82 PathProgramCache]: Analyzing trace with hash 999444121, now seen corresponding path program 1 times [2019-12-07 14:54:01,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:54:01,146 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [487031735] [2019-12-07 14:54:01,146 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2019-12-07 14:54:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:54:01,276 INFO L264 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:54:01,277 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:54:01,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:54:01,282 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:54:01,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:54:01,284 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [487031735] [2019-12-07 14:54:01,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:54:01,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 14:54:01,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429631248] [2019-12-07 14:54:01,285 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:54:01,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:54:01,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:54:01,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:54:01,286 INFO L87 Difference]: Start difference. First operand 58 states and 85 transitions. Second operand 3 states. [2019-12-07 14:54:01,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:54:01,336 INFO L93 Difference]: Finished difference Result 131 states and 195 transitions. [2019-12-07 14:54:01,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:54:01,336 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-12-07 14:54:01,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:54:01,337 INFO L225 Difference]: With dead ends: 131 [2019-12-07 14:54:01,337 INFO L226 Difference]: Without dead ends: 80 [2019-12-07 14:54:01,338 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:54:01,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2019-12-07 14:54:01,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2019-12-07 14:54:01,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-12-07 14:54:01,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 112 transitions. [2019-12-07 14:54:01,346 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 112 transitions. Word has length 25 [2019-12-07 14:54:01,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:54:01,346 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 112 transitions. [2019-12-07 14:54:01,346 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:54:01,346 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 112 transitions. [2019-12-07 14:54:01,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-12-07 14:54:01,347 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:54:01,347 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:54:01,548 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-12-07 14:54:01,549 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:54:01,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:54:01,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1239284745, now seen corresponding path program 1 times [2019-12-07 14:54:01,551 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:54:01,552 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1984553408] [2019-12-07 14:54:01,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2019-12-07 14:54:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:54:01,690 INFO L264 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 14:54:01,691 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:54:01,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:54:01,704 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:54:01,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:54:01,710 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1984553408] [2019-12-07 14:54:01,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:54:01,710 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-12-07 14:54:01,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765980404] [2019-12-07 14:54:01,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:54:01,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:54:01,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:54:01,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:54:01,711 INFO L87 Difference]: Start difference. First operand 78 states and 112 transitions. Second operand 5 states. [2019-12-07 14:54:01,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:54:01,775 INFO L93 Difference]: Finished difference Result 361 states and 530 transitions. [2019-12-07 14:54:01,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 14:54:01,775 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2019-12-07 14:54:01,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:54:01,777 INFO L225 Difference]: With dead ends: 361 [2019-12-07 14:54:01,777 INFO L226 Difference]: Without dead ends: 290 [2019-12-07 14:54:01,778 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 14:54:01,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2019-12-07 14:54:01,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 138. [2019-12-07 14:54:01,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2019-12-07 14:54:01,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 195 transitions. [2019-12-07 14:54:01,794 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 195 transitions. Word has length 27 [2019-12-07 14:54:01,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:54:01,794 INFO L462 AbstractCegarLoop]: Abstraction has 138 states and 195 transitions. [2019-12-07 14:54:01,794 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:54:01,794 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 195 transitions. [2019-12-07 14:54:01,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-12-07 14:54:01,795 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:54:01,795 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:54:01,996 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2019-12-07 14:54:01,997 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:54:01,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:54:01,998 INFO L82 PathProgramCache]: Analyzing trace with hash -194860415, now seen corresponding path program 1 times [2019-12-07 14:54:01,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:54:02,000 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171380844] [2019-12-07 14:54:02,000 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2019-12-07 14:54:02,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:54:02,126 INFO L264 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 14:54:02,127 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:54:02,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:54:02,141 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:54:02,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:54:02,144 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171380844] [2019-12-07 14:54:02,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:54:02,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 14:54:02,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773704531] [2019-12-07 14:54:02,145 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:54:02,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:54:02,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:54:02,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:54:02,146 INFO L87 Difference]: Start difference. First operand 138 states and 195 transitions. Second operand 5 states. [2019-12-07 14:54:02,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:54:02,275 INFO L93 Difference]: Finished difference Result 499 states and 711 transitions. [2019-12-07 14:54:02,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-07 14:54:02,276 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2019-12-07 14:54:02,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:54:02,278 INFO L225 Difference]: With dead ends: 499 [2019-12-07 14:54:02,278 INFO L226 Difference]: Without dead ends: 368 [2019-12-07 14:54:02,279 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-07 14:54:02,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2019-12-07 14:54:02,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 136. [2019-12-07 14:54:02,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-12-07 14:54:02,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 189 transitions. [2019-12-07 14:54:02,303 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 189 transitions. Word has length 28 [2019-12-07 14:54:02,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:54:02,304 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 189 transitions. [2019-12-07 14:54:02,304 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:54:02,304 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 189 transitions. [2019-12-07 14:54:02,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 14:54:02,305 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:54:02,305 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:54:02,505 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2019-12-07 14:54:02,507 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:54:02,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:54:02,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1409937664, now seen corresponding path program 1 times [2019-12-07 14:54:02,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:54:02,509 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1802711270] [2019-12-07 14:54:02,509 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2019-12-07 14:54:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:54:02,739 INFO L264 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2019-12-07 14:54:02,741 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:54:02,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:54:02,752 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:54:02,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:54:02,755 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1802711270] [2019-12-07 14:54:02,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:54:02,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2019-12-07 14:54:02,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627880275] [2019-12-07 14:54:02,756 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:54:02,756 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:54:02,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:54:02,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-07 14:54:02,756 INFO L87 Difference]: Start difference. First operand 136 states and 189 transitions. Second operand 5 states. [2019-12-07 14:54:02,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:54:02,801 INFO L93 Difference]: Finished difference Result 401 states and 556 transitions. [2019-12-07 14:54:02,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 14:54:02,801 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-07 14:54:02,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:54:02,803 INFO L225 Difference]: With dead ends: 401 [2019-12-07 14:54:02,803 INFO L226 Difference]: Without dead ends: 272 [2019-12-07 14:54:02,804 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 14:54:02,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2019-12-07 14:54:02,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 142. [2019-12-07 14:54:02,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-12-07 14:54:02,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 195 transitions. [2019-12-07 14:54:02,814 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 195 transitions. Word has length 32 [2019-12-07 14:54:02,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:54:02,815 INFO L462 AbstractCegarLoop]: Abstraction has 142 states and 195 transitions. [2019-12-07 14:54:02,815 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:54:02,815 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 195 transitions. [2019-12-07 14:54:02,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 14:54:02,816 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:54:02,816 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:54:03,016 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2019-12-07 14:54:03,017 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:54:03,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:54:03,017 INFO L82 PathProgramCache]: Analyzing trace with hash 2111002242, now seen corresponding path program 1 times [2019-12-07 14:54:03,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:54:03,018 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [120577188] [2019-12-07 14:54:03,018 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2019-12-07 14:54:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:54:03,154 INFO L264 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 4 conjunts are in the unsatisfiable core [2019-12-07 14:54:03,156 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:54:03,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:54:03,163 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:54:03,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:54:03,173 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [120577188] [2019-12-07 14:54:03,173 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:54:03,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-12-07 14:54:03,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241217619] [2019-12-07 14:54:03,174 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 14:54:03,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:54:03,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 14:54:03,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-07 14:54:03,174 INFO L87 Difference]: Start difference. First operand 142 states and 195 transitions. Second operand 6 states. [2019-12-07 14:54:03,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:54:03,209 INFO L93 Difference]: Finished difference Result 435 states and 595 transitions. [2019-12-07 14:54:03,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 14:54:03,210 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-07 14:54:03,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:54:03,212 INFO L225 Difference]: With dead ends: 435 [2019-12-07 14:54:03,212 INFO L226 Difference]: Without dead ends: 300 [2019-12-07 14:54:03,212 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-07 14:54:03,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2019-12-07 14:54:03,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 146. [2019-12-07 14:54:03,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2019-12-07 14:54:03,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 199 transitions. [2019-12-07 14:54:03,230 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 199 transitions. Word has length 32 [2019-12-07 14:54:03,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:54:03,230 INFO L462 AbstractCegarLoop]: Abstraction has 146 states and 199 transitions. [2019-12-07 14:54:03,230 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 14:54:03,230 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 199 transitions. [2019-12-07 14:54:03,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-07 14:54:03,232 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:54:03,232 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:54:03,432 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2019-12-07 14:54:03,433 INFO L410 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:54:03,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:54:03,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1524196228, now seen corresponding path program 1 times [2019-12-07 14:54:03,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:54:03,434 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [546260445] [2019-12-07 14:54:03,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2019-12-07 14:54:03,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:54:03,528 INFO L264 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:54:03,530 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:54:03,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:54:03,535 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:54:03,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:54:03,541 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [546260445] [2019-12-07 14:54:03,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:54:03,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-12-07 14:54:03,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118515851] [2019-12-07 14:54:03,542 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:54:03,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:54:03,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:54:03,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:54:03,542 INFO L87 Difference]: Start difference. First operand 146 states and 199 transitions. Second operand 4 states. [2019-12-07 14:54:03,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:54:03,593 INFO L93 Difference]: Finished difference Result 496 states and 679 transitions. [2019-12-07 14:54:03,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:54:03,593 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2019-12-07 14:54:03,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:54:03,595 INFO L225 Difference]: With dead ends: 496 [2019-12-07 14:54:03,595 INFO L226 Difference]: Without dead ends: 357 [2019-12-07 14:54:03,595 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:54:03,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2019-12-07 14:54:03,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 269. [2019-12-07 14:54:03,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2019-12-07 14:54:03,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 364 transitions. [2019-12-07 14:54:03,613 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 364 transitions. Word has length 32 [2019-12-07 14:54:03,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:54:03,613 INFO L462 AbstractCegarLoop]: Abstraction has 269 states and 364 transitions. [2019-12-07 14:54:03,613 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:54:03,613 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 364 transitions. [2019-12-07 14:54:03,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-07 14:54:03,614 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:54:03,614 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:54:03,814 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2019-12-07 14:54:03,815 INFO L410 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:54:03,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:54:03,816 INFO L82 PathProgramCache]: Analyzing trace with hash 61292740, now seen corresponding path program 1 times [2019-12-07 14:54:03,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:54:03,818 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1205320884] [2019-12-07 14:54:03,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2019-12-07 14:54:03,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:54:03,945 INFO L264 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2019-12-07 14:54:03,947 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:54:03,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:54:03,952 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 14:54:03,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:54:03,954 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1205320884] [2019-12-07 14:54:03,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:54:03,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2019-12-07 14:54:03,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117038659] [2019-12-07 14:54:03,955 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:54:03,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-12-07 14:54:03,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:54:03,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:54:03,955 INFO L87 Difference]: Start difference. First operand 269 states and 364 transitions. Second operand 3 states. [2019-12-07 14:54:04,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:54:04,015 INFO L93 Difference]: Finished difference Result 419 states and 564 transitions. [2019-12-07 14:54:04,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:54:04,015 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-12-07 14:54:04,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:54:04,018 INFO L225 Difference]: With dead ends: 419 [2019-12-07 14:54:04,018 INFO L226 Difference]: Without dead ends: 417 [2019-12-07 14:54:04,018 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:54:04,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2019-12-07 14:54:04,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 323. [2019-12-07 14:54:04,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2019-12-07 14:54:04,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 444 transitions. [2019-12-07 14:54:04,043 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 444 transitions. Word has length 33 [2019-12-07 14:54:04,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:54:04,044 INFO L462 AbstractCegarLoop]: Abstraction has 323 states and 444 transitions. [2019-12-07 14:54:04,044 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:54:04,044 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 444 transitions. [2019-12-07 14:54:04,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-07 14:54:04,044 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:54:04,044 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:54:04,245 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2019-12-07 14:54:04,246 INFO L410 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:54:04,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:54:04,247 INFO L82 PathProgramCache]: Analyzing trace with hash 290012344, now seen corresponding path program 1 times [2019-12-07 14:54:04,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2019-12-07 14:54:04,249 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [448344011] [2019-12-07 14:54:04,249 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2019-12-07 14:54:05,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:54:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 14:54:05,838 INFO L174 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2019-12-07 14:54:05,838 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-12-07 14:54:06,039 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2019-12-07 14:54:06,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:54:06 BoogieIcfgContainer [2019-12-07 14:54:06,167 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:54:06,167 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:54:06,167 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:54:06,167 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:54:06,168 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:53:59" (3/4) ... [2019-12-07 14:54:06,170 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-07 14:54:06,252 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b4b9490c-3038-4b20-9bc6-ab7226ed09f3/bin/utaipan/witness.graphml [2019-12-07 14:54:06,253 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:54:06,254 INFO L168 Benchmark]: Toolchain (without parser) took 7451.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 203.9 MB). Free memory was 952.4 MB in the beginning and 875.1 MB in the end (delta: 77.3 MB). Peak memory consumption was 281.3 MB. Max. memory is 11.5 GB. [2019-12-07 14:54:06,254 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:54:06,254 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -153.4 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-12-07 14:54:06,255 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-12-07 14:54:06,255 INFO L168 Benchmark]: Boogie Preprocessor took 27.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:54:06,255 INFO L168 Benchmark]: RCFGBuilder took 493.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.3 MB). Peak memory consumption was 69.3 MB. Max. memory is 11.5 GB. [2019-12-07 14:54:06,255 INFO L168 Benchmark]: TraceAbstraction took 6385.24 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 78.1 MB). Free memory was 1.0 GB in the beginning and 898.7 MB in the end (delta: 125.4 MB). Peak memory consumption was 203.6 MB. Max. memory is 11.5 GB. [2019-12-07 14:54:06,255 INFO L168 Benchmark]: Witness Printer took 85.58 ms. Allocated memory is still 1.2 GB. Free memory was 898.7 MB in the beginning and 875.1 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-12-07 14:54:06,257 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 981.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 414.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -153.4 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 41.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.90 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 493.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 69.3 MB). Peak memory consumption was 69.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6385.24 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 78.1 MB). Free memory was 1.0 GB in the beginning and 898.7 MB in the end (delta: 125.4 MB). Peak memory consumption was 203.6 MB. Max. memory is 11.5 GB. * Witness Printer took 85.58 ms. Allocated memory is still 1.2 GB. Free memory was 898.7 MB in the beginning and 875.1 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 900]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L310] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L545] int cleanupTimeShifts = 4; [L651] int pumpRunning = 0; [L652] int systemActive = 1; [L905] int methAndRunningLastTime ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L623] int retValue_acc ; [L624] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L630] tmp = valid_product() [L632] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L910] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L828] int splverifierCounter ; [L829] int tmp ; [L830] int tmp___0 ; [L831] int tmp___1 ; [L832] int tmp___2 ; [L835] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L837] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L839] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L845] tmp = __VERIFIER_nondet_int() [L847] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L855] tmp___0 = __VERIFIER_nondet_int() [L857] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L77] COND FALSE !(\read(methaneLevelCritical)) [L80] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L865] tmp___2 = __VERIFIER_nondet_int() [L867] COND TRUE \read(tmp___2) [L822] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L659] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L666] COND TRUE \read(systemActive) [L688] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L691] COND TRUE ! pumpRunning [L785] int retValue_acc ; [L786] int tmp ; [L787] int tmp___0 ; [L127] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L130] COND FALSE !(waterLevel < 2) [L134] retValue_acc = 0 [L135] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L791] tmp = isHighWaterSensorDry() [L793] COND FALSE !(\read(tmp)) [L796] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L798] retValue_acc = tmp___0 [L799] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L693] tmp = isHighWaterLevel() [L695] COND TRUE \read(tmp) [L716] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L915] int tmp ; [L916] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L920] tmp = isMethaneLevelCritical() [L922] COND TRUE \read(tmp) [L740] int retValue_acc ; [L743] retValue_acc = pumpRunning [L744] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L924] tmp___0 = isPumpRunning() [L926] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L927] COND FALSE !(\read(methAndRunningLastTime)) [L932] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L837] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L839] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L845] tmp = __VERIFIER_nondet_int() [L847] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L855] tmp___0 = __VERIFIER_nondet_int() [L857] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L865] tmp___2 = __VERIFIER_nondet_int() [L867] COND TRUE \read(tmp___2) [L822] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L659] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L53] COND TRUE waterLevel > 0 [L54] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L666] COND TRUE \read(systemActive) [L688] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L691] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L915] int tmp ; [L916] int tmp___0 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L920] tmp = isMethaneLevelCritical() [L922] COND TRUE \read(tmp) [L740] int retValue_acc ; [L743] retValue_acc = pumpRunning [L744] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L924] tmp___0 = isPumpRunning() [L926] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L927] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L900] __VERIFIER_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 84 locations, 3 error locations. Result: UNSAFE, OverallTime: 6.2s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 719 SDtfs, 876 SDslu, 1212 SDs, 0 SdLazy, 128 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 536 GetRequests, 504 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=323occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 887 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 321 NumberOfCodeBlocks, 321 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 520 ConstructedInterpolants, 0 QuantifiedInterpolants, 25476 SizeOfPredicates, 15 NumberOfNonLiveVariables, 1914 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...